/* ==========================================================
   BELAJAREDUTECH
   MATEMATIKA SD LANJUTAN
   Dipakai untuk landing Matematika Kelas 2-6
========================================================== */


/* ==========================================================
   THEME PER KELAS
========================================================== */

.math-grade-2 {
    --math-accent: #2563eb;
    --math-accent-dark: #1d4ed8;
    --math-accent-soft: #eff6ff;
    --math-secondary: #0891b2;
    --math-green: #0f766e;
    --math-orange: #ea580c;
}

.math-grade-3 {
    --math-accent: #0f766e;
    --math-accent-dark: #115e59;
    --math-accent-soft: #f0fdfa;
    --math-secondary: #2563eb;
    --math-green: #15803d;
    --math-orange: #ea580c;
}

.math-grade-4 {
    --math-accent: #7c3aed;
    --math-accent-dark: #6d28d9;
    --math-accent-soft: #f5f3ff;
    --math-secondary: #2563eb;
    --math-green: #0f766e;
    --math-orange: #ea580c;
}

.math-grade-5 {
    --math-accent: #ea580c;
    --math-accent-dark: #c2410c;
    --math-accent-soft: #fff7ed;
    --math-secondary: #7c3aed;
    --math-green: #0f766e;
    --math-orange: #ea580c;
}

.math-grade-6 {
    --math-accent: #4f46e5;
    --math-accent-dark: #4338ca;
    --math-accent-soft: #eef2ff;
    --math-secondary: #0f766e;
    --math-green: #0f766e;
    --math-orange: #ea580c;
}


/* ==========================================================
   PAGE
========================================================== */

.math-level-page {
    background: var(--color-background, #ffffff);
    color: var(--color-text, #0f172a);
}

.math-level-page main {
    overflow: hidden;
}

.math-level-page .section {
    padding-block: clamp(64px, 8vw, 104px);
}


/* ==========================================================
   BREADCRUMB
========================================================== */

.math-breadcrumb-section {
    padding: 18px 0;
    background: var(--color-background-soft, #f8fafc);
    border-bottom: 1px solid var(--color-border, #e2e8f0);
}

.math-breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    color: var(--color-text-muted, #64748b);
    font-size: 0.78rem;
}

.math-breadcrumb a {
    color: inherit;
    text-decoration: none;
}

.math-breadcrumb a:hover {
    color: var(--math-accent);
}

.math-breadcrumb strong {
    color: var(--math-accent-dark);
}


/* ==========================================================
   HERO
========================================================== */

.math-level-hero {
    position: relative;
    padding: clamp(68px, 9vw, 118px) 0;
    background:
        radial-gradient(
            circle at 86% 14%,
            color-mix(in srgb, var(--math-accent) 14%, transparent),
            transparent 32%
        ),
        radial-gradient(
            circle at 10% 92%,
            color-mix(in srgb, var(--math-secondary) 10%, transparent),
            transparent 30%
        ),
        linear-gradient(180deg, #ffffff, var(--math-accent-soft));
}

.math-level-hero-container {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(380px, 0.9fr);
    align-items: center;
    gap: clamp(42px, 7vw, 86px);
}

.math-level-hero-content {
    position: relative;
    z-index: 2;
}

.math-level-badge {
    width: fit-content;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 18px;
    padding: 8px 12px;
    color: var(--math-accent-dark);
    background: var(--math-accent-soft);
    border: 1px solid color-mix(in srgb, var(--math-accent) 24%, #ffffff);
    border-radius: 999px;
    font-size: 0.68rem;
    font-weight: 850;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.math-level-badge > span {
    width: 27px;
    height: 27px;
    display: grid;
    place-items: center;
    color: #ffffff;
    background: var(--math-accent);
    border-radius: 50%;
    font-size: 0.82rem;
}

.math-level-hero-content h1 {
    max-width: 780px;
    margin: 0 0 22px;
    color: var(--color-text, #0f172a);
    font-size: clamp(2.6rem, 5.4vw, 5.1rem);
    line-height: 0.98;
    letter-spacing: -0.055em;
}

.math-level-hero-content > p {
    max-width: 700px;
    margin: 0;
    color: var(--color-text-muted, #64748b);
    font-size: clamp(1rem, 1.5vw, 1.12rem);
    line-height: 1.85;
}

.math-level-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
}

.math-level-meta {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-top: 34px;
}

.math-level-meta > div {
    padding: 15px;
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: var(--radius-medium, 14px);
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.04);
}

.math-level-meta strong,
.math-level-meta span {
    display: block;
}

.math-level-meta strong {
    margin-bottom: 4px;
    color: var(--math-accent-dark);
    font-size: 0.98rem;
}

.math-level-meta span {
    color: var(--color-text-muted, #64748b);
    font-size: 0.58rem;
    line-height: 1.45;
}

.math-level-hero-visual {
    min-width: 0;
}


/* ==========================================================
   GENERIC NUMBER / PLACE VALUE BOARD
   Dipertahankan untuk halaman Kelas 2-3 yang sudah ada
========================================================== */

.math-number-board,
.math-place-value-board,
.place-value-board,
.grade-two-number-board,
.grade-three-number-board {
    min-height: 420px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 34px;
    color: #ffffff;
    background: linear-gradient(135deg, var(--math-accent), var(--math-secondary));
    border-radius: var(--radius-extra-large, 28px);
    box-shadow: var(--shadow-large, 0 30px 80px rgba(15, 23, 42, 0.18));
    text-align: center;
}

.math-board-label,
.number-board-label {
    display: block;
    margin-bottom: 18px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.65rem;
    font-weight: 850;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.number-board-main,
.place-value-main-number,
.grade-three-board-groups {
    margin-bottom: 18px;
}

.number-board-main strong,
.place-value-main-number strong,
.grade-three-board-groups strong {
    display: inline-block;
    padding: 13px 20px;
    color: var(--math-accent-dark);
    background: #ffffff;
    border-radius: var(--radius-medium, 14px);
    font-size: clamp(2rem, 5vw, 3rem);
}

.math-number-breakdown,
.place-value-breakdown,
.grade-three-number-breakdown {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 22px;
}

.math-number-breakdown span,
.place-value-breakdown span,
.grade-three-number-breakdown span {
    padding: 8px 11px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 8px;
    font-size: 0.68rem;
    font-weight: 800;
}

.math-number-breakdown i,
.place-value-breakdown i,
.grade-three-number-breakdown i {
    color: rgba(255, 255, 255, 0.68);
    font-style: normal;
    font-weight: 900;
}

.place-value-grid,
.math-place-value-grid {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.place-value-grid > div,
.math-place-value-grid > div {
    padding: 13px 8px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-medium, 14px);
}

.place-value-grid span,
.place-value-grid strong,
.math-place-value-grid span,
.math-place-value-grid strong {
    display: block;
}

.place-value-grid span,
.math-place-value-grid span {
    margin-bottom: 4px;
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.54rem;
}

.place-value-grid strong,
.math-place-value-grid strong {
    font-size: 1.05rem;
}


/* ==========================================================
   SECTION HEADERS
========================================================== */

.math-level-page .section-header {
    max-width: 760px;
    margin-bottom: 42px;
}

.math-level-page .section-header.center {
    margin-inline: auto;
    text-align: center;
}

.math-level-page .section-eyebrow {
    display: inline-block;
    margin-bottom: 10px;
    color: var(--math-accent);
    font-size: 0.67rem;
    font-weight: 900;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.math-level-page .section-header h2 {
    margin: 0 0 15px;
    color: var(--color-text, #0f172a);
    font-size: clamp(2rem, 4.2vw, 3.6rem);
    line-height: 1.05;
    letter-spacing: -0.045em;
}

.math-level-page .section-header p {
    margin: 0;
    color: var(--color-text-muted, #64748b);
    line-height: 1.8;
}


/* ==========================================================
   LEARNING PROCESS
========================================================== */

.math-process-section {
    background: var(--color-background, #ffffff);
}

.math-process-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.math-process-grid article {
    min-height: 230px;
    padding: 24px;
    background: var(--color-background-soft, #f8fafc);
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: var(--radius-large, 20px);
}

.math-process-grid article > span {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    margin-bottom: 24px;
    color: #ffffff;
    background: var(--math-accent);
    border-radius: 50%;
    font-size: 0.63rem;
    font-weight: 900;
}

.math-process-grid h3 {
    margin: 0 0 9px;
    color: var(--color-text, #0f172a);
}

.math-process-grid p {
    margin: 0;
    color: var(--color-text-muted, #64748b);
    font-size: 0.76rem;
    line-height: 1.7;
}


/* ==========================================================
   TOPICS
========================================================== */

.math-topics-section {
    background: var(--color-background-soft, #f8fafc);
}

.math-topics-grid,
.math-topic-grid-advanced {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.math-topic-card,
.math-topic-advanced {
    min-width: 0;
    display: flex;
    flex-direction: column;
    padding: 25px;
    background: #ffffff;
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: var(--radius-large, 20px);
    box-shadow: 0 14px 38px rgba(15, 23, 42, 0.035);
    transition:
        transform 0.2s ease,
        border-color 0.2s ease,
        box-shadow 0.2s ease;
}

.math-topic-card:hover,
.math-topic-advanced:hover {
    transform: translateY(-4px);
    border-color: color-mix(in srgb, var(--math-accent) 45%, #e2e8f0);
    box-shadow: 0 18px 42px rgba(15, 23, 42, 0.075);
}

.math-topic-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 20px;
}

.math-topic-number {
    color: var(--math-accent);
    font-size: 0.64rem;
    font-weight: 900;
    letter-spacing: 0.08em;
}

.math-topic-status {
    padding: 6px 9px;
    border-radius: 999px;
    font-size: 0.54rem;
    font-weight: 850;
}

.math-topic-status.available {
    color: #166534;
    background: #dcfce7;
}

.math-topic-status.next {
    color: #9a3412;
    background: #ffedd5;
}

.math-topic-status.planned {
    color: #64748b;
    background: #f1f5f9;
}

.math-topic-icon {
    min-height: 72px;
    display: flex;
    align-items: center;
    margin-bottom: 18px;
    color: var(--math-accent-dark);
    font-size: clamp(1.55rem, 3vw, 2.2rem);
    font-weight: 950;
    letter-spacing: -0.03em;
}

.math-topic-card h3,
.math-topic-advanced h3 {
    margin: 0 0 10px;
    color: var(--color-text, #0f172a);
    font-size: 1.18rem;
    line-height: 1.2;
}

.math-topic-card > p,
.math-topic-advanced > p {
    margin: 0 0 18px;
    color: var(--color-text-muted, #64748b);
    font-size: 0.76rem;
    line-height: 1.72;
}

.math-topic-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 20px;
}

.math-topic-tags span {
    padding: 6px 8px;
    color: var(--math-accent-dark);
    background: var(--math-accent-soft);
    border-radius: 7px;
    font-size: 0.53rem;
    font-weight: 750;
}

.math-topic-link {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 17px;
    color: var(--math-accent-dark);
    border-top: 1px solid var(--color-border, #e2e8f0);
    text-decoration: none;
    font-size: 0.7rem;
    font-weight: 850;
}

a.math-topic-link:hover {
    color: var(--math-accent);
}

.math-topic-link-disabled {
    cursor: default;
    opacity: 0.58;
    user-select: none;
}


/* ==========================================================
   FEATURED
========================================================== */

.math-featured-section {
    background: var(--color-background, #ffffff);
}

.math-featured-card {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(380px, 1.1fr);
    align-items: stretch;
    gap: 0;
    overflow: hidden;
    background: var(--math-accent-soft);
    border: 1px solid color-mix(in srgb, var(--math-accent) 22%, #e2e8f0);
    border-radius: var(--radius-extra-large, 28px);
}

.math-featured-content {
    padding: clamp(30px, 5vw, 58px);
}

.math-featured-content h2 {
    margin: 0 0 16px;
    color: var(--color-text, #0f172a);
    font-size: clamp(2rem, 4vw, 3.5rem);
    letter-spacing: -0.045em;
}

.math-featured-content > p {
    margin: 0;
    color: var(--color-text-muted, #64748b);
    line-height: 1.8;
}

.math-featured-example {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin: 24px 0;
}

.math-featured-example span {
    padding: 8px 11px;
    color: var(--math-accent-dark);
    background: #ffffff;
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: 8px;
    font-weight: 850;
}

.math-featured-example strong {
    color: var(--math-accent);
}

.math-featured-visual {
    min-height: 360px;
    padding: clamp(28px, 4vw, 48px);
    background: linear-gradient(
        135deg,
        color-mix(in srgb, var(--math-accent) 92%, #ffffff),
        var(--math-secondary)
    );
}

.math-featured-visual-label {
    display: block;
    margin-bottom: 18px;
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.62rem;
    font-weight: 850;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}


/* ==========================================================
   GENERIC LEARNING MAP
========================================================== */

.math-learning-map-section {
    background: var(--color-background-soft, #f8fafc);
}

.math-learning-map,
.grade-three-learning-map {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    max-width: 1150px;
    margin-inline: auto;
}

.learning-map-item {
    min-width: 125px;
    min-height: 115px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 15px;
    color: var(--color-text-secondary, #334155);
    background: #ffffff;
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: var(--radius-large, 20px);
    text-align: center;
    text-decoration: none;
}

.learning-map-item > span {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    margin-bottom: 8px;
    color: #ffffff;
    background: var(--math-accent);
    border-radius: 50%;
    font-size: 0.61rem;
    font-weight: 900;
}

.learning-map-item strong {
    font-size: 0.72rem;
}

.learning-map-arrow {
    color: var(--math-accent);
    font-size: 1.15rem;
    font-weight: 900;
}


/* ==========================================================
   ACTIVITIES
========================================================== */

.math-activities-section {
    background: var(--color-background, #ffffff);
}

.math-activities-grid,
.math-activity-grid-advanced {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.math-activities-grid article,
.math-activity-grid-advanced article {
    min-height: 190px;
    padding: 22px;
    background: var(--color-background-soft, #f8fafc);
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: var(--radius-large, 20px);
}

.math-activities-grid article > span,
.math-activity-grid-advanced article > span {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    margin-bottom: 18px;
    color: #ffffff;
    background: var(--math-accent);
    border-radius: 50%;
    font-size: 0.58rem;
    font-weight: 900;
}

.math-activities-grid h3,
.math-activity-grid-advanced h3 {
    margin: 0 0 8px;
    color: var(--color-text, #0f172a);
}

.math-activities-grid p,
.math-activity-grid-advanced p {
    margin: 0;
    color: var(--color-text-muted, #64748b);
    font-size: 0.72rem;
    line-height: 1.65;
}


/* ==========================================================
   LEVEL NAVIGATION
========================================================== */

.math-level-navigation-section {
    padding: 28px 0 72px;
    background: var(--color-background, #ffffff);
}

.math-level-navigation {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.math-level-navigation-card {
    min-height: 112px;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 22px;
    color: var(--color-text, #0f172a);
    background: var(--color-background-soft, #f8fafc);
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: var(--radius-large, 20px);
    text-decoration: none;
    transition:
        transform 0.2s ease,
        border-color 0.2s ease;
}

.math-level-navigation-card:hover {
    transform: translateY(-2px);
    border-color: var(--math-accent);
}

.math-level-navigation-card > span {
    color: var(--math-accent);
    font-size: 1.25rem;
    font-weight: 900;
}

.math-level-navigation-card small,
.math-level-navigation-card strong {
    display: block;
}

.math-level-navigation-card small {
    margin-bottom: 5px;
    color: var(--color-text-muted, #64748b);
    font-size: 0.57rem;
}

.math-level-navigation-card strong {
    color: var(--math-accent-dark);
}

.math-level-navigation-next {
    justify-content: flex-end;
    text-align: right;
}


/* ==========================================================
   KELAS 3 - TAMBAHAN
========================================================== */

.grade-three-board-groups {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
}

.grade-three-board-groups > div {
    min-width: 70px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 10px;
}

.grade-three-board-groups span,
.grade-three-board-groups strong {
    display: block;
}

.grade-three-board-groups span {
    color: rgba(255, 255, 255, 0.68);
    font-size: 0.55rem;
}

.grade-three-board-groups strong {
    color: #ffffff;
    background: transparent;
    padding: 0;
    font-size: 1.1rem;
}

.grade-three-learning-map .learning-map-item > span {
    background: var(--math-accent, #0f766e);
}


/* ==========================================================
   KELAS 4 - HERO BOARD
========================================================== */

.math-grade-four-board {
    min-height: 430px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 36px;
    color: #ffffff;
    background: linear-gradient(135deg, var(--math-accent), var(--math-secondary));
    border-radius: var(--radius-extra-large, 28px);
    box-shadow: var(--shadow-large, 0 30px 80px rgba(15, 23, 42, 0.18));
    text-align: center;
}

.grade-four-main-number {
    margin-bottom: 15px;
}

.grade-four-main-number strong {
    display: inline-block;
    padding: 14px 22px;
    color: var(--math-accent-dark);
    background: #ffffff;
    border-radius: var(--radius-medium, 14px);
    font-size: clamp(2rem, 5vw, 3rem);
}

.grade-four-breakdown {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 24px;
}

.grade-four-breakdown span {
    padding: 8px 11px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 8px;
    font-size: 0.67rem;
    font-weight: 800;
}

.grade-four-breakdown i {
    color: rgba(255, 255, 255, 0.65);
    font-style: normal;
    font-weight: 900;
}

.grade-four-concepts {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 7px;
}

.grade-four-concepts > div {
    padding: 13px 8px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-medium, 14px);
}

.grade-four-concepts span,
.grade-four-concepts strong {
    display: block;
}

.grade-four-concepts span {
    margin-bottom: 4px;
    font-size: 0.92rem;
    font-weight: 900;
}

.grade-four-concepts strong {
    color: rgba(255, 255, 255, 0.66);
    font-size: 0.53rem;
}


/* ==========================================================
   KELAS 4 - FEATURED PLACE VALUE
========================================================== */

.grade-four-place-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.grade-four-place-grid > div {
    min-height: 150px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 15px;
    background: #ffffff;
    border-radius: var(--radius-medium, 14px);
    text-align: center;
}

.grade-four-place-grid span,
.grade-four-place-grid strong,
.grade-four-place-grid small {
    display: block;
}

.grade-four-place-grid span {
    margin-bottom: 5px;
    color: var(--color-text-muted, #64748b);
    font-size: 0.56rem;
    font-weight: 800;
    text-transform: uppercase;
}

.grade-four-place-grid strong {
    margin-bottom: 4px;
    color: var(--math-accent);
    font-size: 2rem;
}

.grade-four-place-grid small {
    color: var(--math-accent-dark);
    font-weight: 850;
}


/* ==========================================================
   KELAS 4 - LEARNING MAP
========================================================== */

.grade-four-learning-map {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    max-width: 1150px;
    margin-inline: auto;
}

.grade-four-learning-map .learning-map-item {
    min-width: 125px;
    min-height: 115px;
    transition:
        transform 0.2s ease,
        border-color 0.2s ease,
        box-shadow 0.2s ease;
}

.grade-four-learning-map .learning-map-item:hover {
    transform: translateY(-3px);
    border-color: var(--math-accent);
    box-shadow: 0 14px 35px rgba(15, 23, 42, 0.08);
}

.grade-four-learning-map .learning-map-item > span {
    background: var(--math-accent);
}


/* ==========================================================
   KELAS 5 - HERO BOARD
========================================================== */

.math-grade-five-board {
    min-height: 440px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 36px;
    color: #ffffff;
    background: linear-gradient(135deg, var(--math-accent), var(--math-secondary));
    border-radius: var(--radius-extra-large, 28px);
    box-shadow: var(--shadow-large, 0 30px 80px rgba(15, 23, 42, 0.18));
    text-align: center;
}

.grade-five-equivalence {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    align-items: center;
    gap: 9px;
    margin-bottom: 22px;
}

.grade-five-equivalence > div {
    padding: 17px 10px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-medium, 14px);
}

.grade-five-equivalence span,
.grade-five-equivalence strong {
    display: block;
}

.grade-five-equivalence span {
    margin-bottom: 5px;
    color: rgba(255, 255, 255, 0.67);
    font-size: 0.55rem;
    text-transform: uppercase;
}

.grade-five-equivalence strong {
    font-size: 1.35rem;
}

.grade-five-equivalence i {
    color: rgba(255, 255, 255, 0.72);
    font-style: normal;
    font-size: 1.2rem;
    font-weight: 900;
}

.grade-five-percent-bar {
    position: relative;
    width: 100%;
    height: 64px;
    margin-bottom: 20px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-medium, 14px);
}

.grade-five-percent-fill {
    position: absolute;
    inset: 0 auto 0 0;
    width: 75%;
    background: rgba(255, 255, 255, 0.9);
}

.grade-five-percent-bar > span {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: #ffffff;
    font-size: 0.62rem;
    font-weight: 900;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.45);
}

.grade-five-concept-grid {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 7px;
}

.grade-five-concept-grid > div {
    padding: 13px 8px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-medium, 14px);
}

.grade-five-concept-grid strong,
.grade-five-concept-grid span {
    display: block;
}

.grade-five-concept-grid strong {
    margin-bottom: 4px;
    font-size: 0.92rem;
}

.grade-five-concept-grid span {
    color: rgba(255, 255, 255, 0.66);
    font-size: 0.52rem;
}


/* ==========================================================
   KELAS 5 - FEATURED FRACTIONS
========================================================== */

.grade-five-fraction-visual {
    display: grid;
    gap: 14px;
}

.grade-five-fraction-visual > div {
    padding: 15px;
    background: #ffffff;
    border-radius: var(--radius-medium, 14px);
}

.grade-five-fraction-visual > div > span {
    display: block;
    margin-bottom: 9px;
    color: var(--math-accent-dark);
    font-size: 0.67rem;
    font-weight: 900;
    text-align: center;
}

.grade-five-fraction-bar {
    display: grid;
    gap: 3px;
    min-height: 55px;
}

.grade-five-half {
    grid-template-columns: repeat(2, 1fr);
}

.grade-five-fourths {
    grid-template-columns: repeat(4, 1fr);
}

.grade-five-eighths {
    grid-template-columns: repeat(8, 1fr);
}

.grade-five-fraction-bar i {
    display: block;
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    border-radius: 5px;
}

.grade-five-half i:first-child,
.grade-five-fourths i:nth-child(-n + 2),
.grade-five-eighths i:nth-child(-n + 4) {
    background: var(--math-accent);
}


/* ==========================================================
   KELAS 5 - CONNECTIONS
========================================================== */

.grade-five-connections-section {
    background: var(--color-background-soft, #f8fafc);
}

.grade-five-connections-grid {
    max-width: 900px;
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    align-items: center;
    gap: 15px;
    margin-inline: auto;
}

.grade-five-connections-grid article {
    min-height: 220px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 22px;
    background: #ffffff;
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: var(--radius-large, 20px);
    text-align: center;
}

.grade-five-connections-grid article > span {
    margin-bottom: 8px;
    color: var(--color-text-muted, #64748b);
    font-size: 0.61rem;
    font-weight: 850;
    text-transform: uppercase;
}

.grade-five-connections-grid article > strong {
    margin-bottom: 8px;
    color: var(--math-accent);
    font-size: 2rem;
}

.grade-five-connections-grid article > p {
    margin: 0;
    color: var(--color-text-muted, #64748b);
    font-size: 0.72rem;
    line-height: 1.6;
}

.grade-five-connection-arrow {
    color: var(--math-accent);
    font-size: 1.5rem;
    font-weight: 900;
}


/* ==========================================================
   KELAS 5 - VOLUME PREVIEW
========================================================== */

.grade-five-volume-preview {
    background: var(--color-background, #ffffff);
}

.grade-five-volume-container {
    display: grid;
    grid-template-columns: minmax(0, 0.85fr) minmax(420px, 1.15fr);
    align-items: center;
    gap: 70px;
}

.grade-five-volume-content h2 {
    margin-bottom: 18px;
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    letter-spacing: -0.04em;
}

.grade-five-volume-content p {
    color: var(--color-text-muted, #64748b);
    line-height: 1.8;
}

.grade-five-volume-formula {
    margin-top: 20px;
    padding: 16px;
    background: var(--math-accent-soft);
    border: 1px solid #fed7aa;
    border-radius: var(--radius-medium, 14px);
}

.grade-five-volume-formula span,
.grade-five-volume-formula strong {
    display: block;
}

.grade-five-volume-formula span {
    margin-bottom: 5px;
    color: var(--color-text-muted, #64748b);
    font-size: 0.59rem;
    text-transform: uppercase;
}

.grade-five-volume-formula strong {
    color: var(--math-accent-dark);
}

.grade-five-cube-model {
    position: relative;
    min-height: 390px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 35px;
    background: linear-gradient(135deg, var(--math-accent-soft), #faf5ff);
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: var(--radius-extra-large, 28px);
}

.grade-five-cube-layer {
    width: min(100%, 290px);
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 5px;
}

.grade-five-cube-layer i {
    aspect-ratio: 1;
    display: block;
    background: #ffffff;
    border: 2px solid var(--math-accent);
    border-radius: 7px;
    box-shadow: 4px 4px 0 rgba(234, 88, 12, 0.13);
}

.grade-five-cube-model > span {
    margin-top: 10px;
    color: var(--color-text-muted, #64748b);
    font-size: 0.61rem;
    font-weight: 800;
}


/* ==========================================================
   KELAS 5 - LEARNING MAP
========================================================== */

.grade-five-learning-map {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    max-width: 1150px;
    margin-inline: auto;
}

.grade-five-learning-map .learning-map-item {
    min-width: 125px;
    min-height: 120px;
}

.grade-five-learning-map .learning-map-item small {
    margin-top: 5px;
    color: var(--math-accent-dark);
    font-size: 0.53rem;
    font-weight: 800;
}

.grade-five-map-next {
    border-color: var(--math-accent) !important;
    background: var(--math-accent-soft) !important;
}


/* ==========================================================
   FOOTER DISABLED LINKS
========================================================== */

.footer-link-disabled {
    display: block;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.46);
    font-size: inherit;
    cursor: default;
}


/* ==========================================================
   FALLBACK JIKA BROWSER BELUM MENDUKUNG color-mix()
========================================================== */

@supports not (color: color-mix(in srgb, red 50%, blue)) {
    .math-level-hero {
        background: linear-gradient(180deg, #ffffff, var(--math-accent-soft));
    }

    .math-level-badge,
    .math-featured-card {
        border-color: var(--color-border, #e2e8f0);
    }

    .math-topic-card:hover,
    .math-topic-advanced:hover {
        border-color: var(--math-accent);
    }
}


/* ==========================================================
   RESPONSIVE
========================================================== */

@media (max-width: 1024px) {
    .math-level-hero-container {
        grid-template-columns: 1fr;
    }

    .math-level-hero-content {
        max-width: 820px;
    }

    .math-process-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .math-topics-grid,
    .math-topic-grid-advanced {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .math-featured-card {
        grid-template-columns: 1fr;
    }

    .math-activities-grid,
    .math-activity-grid-advanced {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .grade-five-volume-container {
        grid-template-columns: 1fr;
        gap: 45px;
    }
}

@media (max-width: 900px) {
    .grade-four-concepts,
    .grade-five-concept-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .grade-four-place-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .grade-five-connections-grid {
        grid-template-columns: 1fr;
    }

    .grade-five-connection-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 860px) {
    .math-level-meta {
        grid-template-columns: 1fr;
    }

    .math-level-navigation {
        grid-template-columns: 1fr;
    }

    .place-value-grid,
    .math-place-value-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 650px) {
    .math-level-hero {
        padding-block: 58px;
    }

    .math-level-hero-content h1 {
        font-size: clamp(2.35rem, 12vw, 3.6rem);
    }

    .math-level-hero-actions {
        flex-direction: column;
    }

    .math-level-hero-actions .button {
        width: 100%;
        justify-content: center;
    }

    .math-process-grid,
    .math-topics-grid,
    .math-topic-grid-advanced,
    .math-activities-grid,
    .math-activity-grid-advanced {
        grid-template-columns: 1fr;
    }

    .math-grade-four-board,
    .math-grade-five-board,
    .math-number-board,
    .math-place-value-board,
    .place-value-board,
    .grade-two-number-board,
    .grade-three-number-board {
        min-height: 390px;
        padding: 24px;
    }

    .math-number-breakdown,
    .place-value-breakdown,
    .grade-three-number-breakdown,
    .grade-four-breakdown {
        flex-direction: column;
    }

    .math-number-breakdown i,
    .place-value-breakdown i,
    .grade-three-number-breakdown i,
    .grade-four-breakdown i {
        transform: rotate(90deg);
    }

    .grade-four-concepts,
    .grade-four-place-grid,
    .grade-five-concept-grid {
        grid-template-columns: 1fr;
    }

    .grade-five-equivalence {
        grid-template-columns: 1fr;
    }

    .grade-five-equivalence i {
        transform: rotate(90deg);
    }

    .grade-five-cube-model {
        min-height: 330px;
        padding: 24px;
    }

    .math-learning-map,
    .grade-three-learning-map,
    .grade-four-learning-map,
    .grade-five-learning-map {
        flex-direction: column;
    }

    .learning-map-item,
    .grade-four-learning-map .learning-map-item,
    .grade-five-learning-map .learning-map-item {
        width: 100%;
    }

    .learning-map-arrow {
        transform: rotate(90deg);
    }

    .math-level-navigation-card,
    .math-level-navigation-next {
        justify-content: flex-start;
        text-align: left;
    }

    .math-featured-example {
        align-items: flex-start;
    }
}

/* ==========================================================
   MATEMATIKA SD - KELAS 6
   TAMBAHKAN DI BAGIAN PALING BAWAH FILE
   matematika-sd-lanjutan.css
========================================================== */

.math-grade-6 {
    --math-accent: #2563eb;
    --math-accent-dark: #1d4ed8;
    --math-accent-soft: #eff6ff;

    --math-secondary: #7c3aed;
    --math-secondary-soft: #f5f3ff;

    --math-green: #0f766e;
    --math-green-soft: #f0fdfa;
}



/* ==========================================================
   FOOTER DISABLED
========================================================== */

.math-grade-6
.footer-link-disabled {
    display: block;

    margin-bottom: 8px;

    color:
        rgba(255, 255, 255, 0.45);

    cursor: default;
}



/* ==========================================================
   HERO BOARD
========================================================== */

.math-grade-6
.math-level-hero {
    background:
        radial-gradient(
            circle at 85% 18%,
            rgba(37, 99, 235, 0.12),
            transparent 32%
        ),
        radial-gradient(
            circle at 10% 85%,
            rgba(124, 58, 237, 0.08),
            transparent 30%
        ),
        linear-gradient(
            180deg,
            #f8fbff,
            #ffffff
        );
}


.math-grade-six-board {
    min-height: 430px;

    display: flex;
    flex-direction: column;

    justify-content: center;

    padding: 34px;

    color: #ffffff;

    background:
        linear-gradient(
            135deg,
            var(--math-accent),
            var(--math-secondary)
        );

    border-radius:
        var(--radius-extra-large, 28px);

    box-shadow:
        var(
            --shadow-large,
            0 30px 80px rgba(15, 23, 42, 0.18)
        );
}


.math-grade-six-board
.math-board-label {
    display: block;

    margin-bottom: 22px;

    color:
        rgba(255, 255, 255, 0.7);

    font-size: 0.65rem;

    font-weight: 850;

    text-align: center;

    text-transform: uppercase;

    letter-spacing: 0.08em;
}


.grade-six-center {
    display: grid;

    grid-template-columns:
        1fr auto 1fr auto 1fr;

    align-items: center;

    gap: 9px;

    margin-bottom: 15px;
}


.grade-six-center strong {
    padding: 16px 8px;

    color:
        var(--math-accent-dark);

    background: #ffffff;

    border-radius:
        var(--radius-medium, 14px);

    font-size:
        clamp(
            1rem,
            3vw,
            1.4rem
        );

    text-align: center;
}


.grade-six-center span {
    color:
        rgba(255, 255, 255, 0.72);

    font-weight: 900;

    text-align: center;
}


.grade-six-connections {
    display: grid;

    grid-template-columns:
        repeat(4, 1fr);

    gap: 8px;

    margin-bottom: 15px;
}


.grade-six-connections > div {
    padding: 13px 8px;

    background:
        rgba(255, 255, 255, 0.09);

    border:
        1px solid
        rgba(255, 255, 255, 0.12);

    border-radius:
        var(--radius-medium, 14px);

    text-align: center;
}


.grade-six-connections span,
.grade-six-connections strong {
    display: block;
}


.grade-six-connections span {
    margin-bottom: 5px;

    color:
        rgba(255, 255, 255, 0.62);

    font-size: 0.52rem;

    text-transform: uppercase;
}


.grade-six-message {
    padding: 14px;

    color:
        var(--math-accent-dark);

    background: #ffffff;

    border-radius:
        var(--radius-medium, 14px);

    text-align: center;
}


.grade-six-message span,
.grade-six-message strong {
    display: block;
}


.grade-six-message span {
    margin-bottom: 5px;

    color:
        var(--color-text-muted, #64748b);

    font-size: 0.55rem;

    text-transform: uppercase;
}



/* ==========================================================
   TOPIC ICON
========================================================== */

.math-grade-6
.grade-six-icon {
    min-height: 110px;

    display: flex;

    align-items: center;
    justify-content: center;

    gap: 8px;

    margin-bottom: 18px;

    padding: 18px;

    background:
        linear-gradient(
            135deg,
            var(--math-accent-soft),
            var(--math-secondary-soft)
        );

    border-radius:
        var(--radius-large, 20px);
}


.math-grade-6
.grade-six-icon span {
    min-width: 58px;

    padding:
        10px 8px;

    color:
        var(--math-accent-dark);

    background: #ffffff;

    border:
        1px solid
        rgba(37, 99, 235, 0.12);

    border-radius:
        var(--radius-medium, 14px);

    font-size: 0.8rem;

    font-weight: 900;

    text-align: center;
}


.math-grade-6
.grade-six-icon strong {
    color:
        var(--math-secondary);

    font-size: 1.2rem;
}



/* ==========================================================
   FEATURED OPERATION BOARD
========================================================== */

.grade-six-operation-board {
    width: min(420px, 100%);

    padding: 28px;

    background:
        linear-gradient(
            135deg,
            var(--math-accent),
            var(--math-secondary)
        );

    border-radius:
        var(--radius-extra-large, 28px);

    box-shadow:
        0 25px 60px
        rgba(37, 99, 235, 0.16);

    text-align: center;
}


.grade-six-operation-board > span {
    display: block;

    margin-bottom: 13px;

    color:
        rgba(255, 255, 255, 0.68);

    font-size: 0.58rem;

    font-weight: 850;

    text-transform: uppercase;
}


.grade-six-operation-board > div {
    margin-bottom: 9px;

    padding: 17px;

    color:
        var(--math-accent-dark);

    background: #ffffff;

    border-radius:
        var(--radius-medium, 14px);
}


.grade-six-operation-board > div > strong {
    font-size: 1.25rem;
}


.grade-six-operation-step span,
.grade-six-operation-step strong,
.grade-six-operation-result span,
.grade-six-operation-result strong {
    display: block;
}


.grade-six-operation-step span,
.grade-six-operation-result span {
    margin-bottom: 4px;

    color:
        var(--color-text-muted, #64748b);

    font-size: 0.55rem;
}


.grade-six-operation-result {
    margin-bottom: 0 !important;

    color: #ffffff !important;

    background:
        var(--math-green) !important;
}


.grade-six-operation-result span {
    color:
        rgba(255, 255, 255, 0.72);
}


.grade-six-operation-result strong {
    color: #ffffff;

    font-size: 1.45rem !important;
}



/* ==========================================================
   LEARNING MAP
========================================================== */

.grade-six-learning-map {
    max-width: 980px;

    display: grid;

    grid-template-columns:
        1fr auto 1fr;

    align-items: center;

    gap: 12px;

    margin-inline: auto;
}


.math-grade-6
.learning-map-item {
    min-height: 115px;

    display: grid;

    grid-template-columns:
        auto 1fr;

    align-items: center;

    gap: 13px;

    padding: 18px;

    background: #ffffff;

    border:
        1px solid
        var(--color-border, #e2e8f0);

    border-radius:
        var(--radius-large, 20px);
}


.math-grade-6
.learning-map-item > span {
    width: 42px;
    height: 42px;

    display: grid;

    place-items: center;

    color: #ffffff;

    background:
        var(--math-accent);

    border-radius: 50%;

    font-size: 0.62rem;

    font-weight: 900;
}


.math-grade-6
.learning-map-item strong,
.math-grade-6
.learning-map-item small {
    display: block;
}


.math-grade-6
.learning-map-item strong {
    margin-bottom: 4px;

    color:
        var(--color-text-primary, #0f172a);
}


.math-grade-6
.learning-map-item small {
    color:
        var(--color-text-muted, #64748b);

    line-height: 1.45;
}


.math-grade-6
.learning-map-arrow {
    color:
        var(--math-accent);

    font-style: normal;

    font-size: 1.2rem;

    font-weight: 900;

    text-align: center;
}



/* ==========================================================
   RESPONSIVE
========================================================== */

@media (max-width: 900px) {

    .grade-six-connections {
        grid-template-columns:
            repeat(2, 1fr);
    }


    .grade-six-learning-map {
        grid-template-columns: 1fr;
    }


    .math-grade-6
    .learning-map-arrow {
        transform:
            rotate(90deg);
    }

}


@media (max-width: 650px) {

    .math-grade-six-board {
        min-height: 390px;

        padding: 24px;
    }


    .grade-six-center {
        grid-template-columns: 1fr;
    }


    .grade-six-center span {
        transform:
            rotate(90deg);
    }


    .grade-six-connections {
        grid-template-columns: 1fr;
    }


    .math-grade-6
    .grade-six-icon {
        flex-direction: column;
    }

}